2068356531 has 16 divisors (see below), whose sum is σ = 2895494400. Its totient is φ = 1311481248.

The previous prime is 2068356509. The next prime is 2068356533. The reversal of 2068356531 is 1356538602.

It is not a de Polignac number, because 2068356531 - 2⁶ = 2068356467 is a prime.

It is a super-2 number, since 2×2068356531² = 8556197478660707922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2068356531.

It is not an unprimeable number, because it can be changed into a prime (2068356533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171591 + ... + 183248.

It is an arithmetic number, because the mean of its divisors is an integer number (180968400).

Almost surely, 2^2068356531 is an apocalyptic number.

2068356531 is a deficient number, since it is larger than the sum of its proper divisors (827137869).

2068356531 is a wasteful number, since it uses less digits than its factorization.

2068356531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354938.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2068356531 is about 45479.1878885276. The cubic root of 2068356531 is about 1274.1145267520.

The spelling of 2068356531 in words is "two billion, sixty-eight million, three hundred fifty-six thousand, five hundred thirty-one".